AnswersTX-Physics BUnit Test

Unit Test — Unit test Answers

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A car’s momentum is p when it is traveling with a velocity of v. If the velocity of that car doubles, what is the new momentum of the car?

A
p
Option A
B
p
C
2p
D
4p
22
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What are possible units for impulse? Check all that apply.kg • mkg • N • sN • m

Question illustration
A
kg • m
B
kg •
Option B
C
N • s
D
N • m
E
StartFraction Newtons times meters per second EndFraction
Option E
23

A 0.25 kg baseball is in contact with a bat for 0.0075 s and exerts a force of 18,500 N. What impulse is delivered to the ball?

A
33 kg •
Option A
B
140 kg •
Option B
C
4600 kg •
Option C
D
74,000 kg •
Option D
24

Which are examples of perfectly inelastic collisions? Check all that apply.a baseball bouncing off a bat bumper cars bumping off of each othera cue ball hitting an eight ball and stoppinga plane landing on an aircraft carrierrain sticking to a windowtwo train cars coupling together

A
a baseball bouncing off a bat
B
bumper cars bumping off of each other
C
a cue ball hitting an eight ball and stopping
D
a plane landing on an aircraft carrier
E
rain sticking to a window
F
two train cars coupling together
25

What is the SI unit for momentum?

A
kg • m
B
kg •
Option B
C
kg •
Option C
D
kg •
Option D

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Unit Test — Unit test Answers — TX-Physics B